N peters



(No Model.)

J. J. UNBEHEND.

RIVETING MACHINE.

Patented May 31,1881

fiv; w m w WITNESSES: INVENTOB wi r 412 ATTORNEYS;

UNITED STATE PATENT} Er ca].

JAooB J. UNBEHEND, OF sYRAousn, NEW YORK, ASSIGNOR TO Jonson L. THOMSON& 00., or SAME PLACE.

RIVETING-MACH INEL QPECIPICATION forming part of Letters PatentNo.363,923, dated May 31, 1887;

Application filed December 27, It 86. Serial No. 222,652. (No model.) a

heels of arctics and like overshoes, and has for its object theprotection of the combined :ad-

- j ustable shoe-holder and riveting-block, upon which the overshoemaybe securely held and accurately adjusted to the device for headingthe rivets with great rapidity and uniformity; and to this end theinvention consists in a ma.- chine for securing rivets in the heels ofarctics and like overshoes, of the combined adjustable shoe-holder andriveting-block, and

of the combination of a pivoted riveting-block having an adjustingmechanism consisting of a'vertically-guided screw carrying theriveting-block with the adjustable shoe-holder and plunger for raisingthe same, and a spiral spring 'for retracting the riveting-block, and adevice for securing the riveting-block in its operatlve positlon, all ashereinafter-more particularly described, and pointed out in the claims.1

It also consists in the detail construction and arrangement of'theparts, as hereinafter fully described, and pointed outin the claims. IIn specifying my invention reference is had to the accompanyingdrawings, in which like letters indicate corresponding parts in all theviews.

Figure 1 is a side elevation showing the generalconstruction andarrangement of the parts. Fig. 2 is a top plan showing the adjustableshoe-holder and rivetingblock in their operative position. Fig. 3 is alongitudinal vertical section taken on line or m, Fig. 2. Fig. 4. is

a transverse section taken on line 3 7 Fig. 1. Fig. 5 is an enlargeddetached detail of the screw for adjusting the riveting-block, showingthe thread and groove for guiding the riveting-block rectilinearly initsvertical adjustment.

Fig." 6 shows, respectively, a rear side and edge view'of thespring-stop for holding the adjusting-nut from turning on the screw ofthe riveting-block and Fig. 7 is an'eularged" detached detail of theriveting-dies which aresecured in the riveting-block.

A represents the stock of the adjustable rivetin'g-block and combinedadjustable shoehold er, and the same consists of the cylindrical tubularvertical section A and the angular foot or arm A The stock A is pivotedat F onto the frame M of the machine carrying the rivet-headingmechanism, which machine, may be of the character described in myapplication A, of even date herewith The tubular verticaljportion A ofthe stock A has a tongue, 0, on the interior, as best shown in thetransverse sectional view Fig. 4, which, in connection with a suitablegroove, 0, in the screw G' of the riveting-block B,ser'ves to guide theriveting-block B rectilinear] y vertically without permitting the screwto .turn in its upward movement. V

B is the combined riveting-block and adj ustable shoe-holder, and itconsists of the'anvil portion or head B and thescrew or shank G.

The threaded portion of the screw G fits down into the tubular portionof the stock A, the

tongue a of which engages the groove a in the side of G, for the purposealready explained.

G is the adjusting-nut, threaded on its interior to engage the thread ofthe screw G, and

it serves to raise or lower the'riveti'ngblock B by turning the sameinthe usual manner.

The exterior of the adjusting-nut G provided withthe groove-shapedserrations c c,

which extend vertically from top to bottom of,

the adj usting-nut, for the purpose which will be presently explained. I

' The head of the riveting block or anvil B is provided with apertures LL for the reception of dies Z Z, Fig. 7, which fit into the apertures LL and serve to spread or clinch the prongs of the rivets in the headingoperation when the same are inserted in the arctics or overshoes,'aswill be presently explained. 7

Upon the side of the riveting block oranvil B is secured a plate, J,which supports one end of the spiral spring K, the other end'of which issecured to thestock A,as illustrated in Fig. 1. The office of thespiralis to retract the anvil or riveting block B when the same is forced upin the operation of heading the rivets.

D Drepresent the portion of the shoe holder which supports the toe andsole of the shoe,

, shoe onto the anvil or riveting block B by loosening theclamping-screws E E and adjusting the supports D D to the length of theshoe, and that the shoe is firmly held on the adj ustable shoe-holdcrand riveting'block when the same is tightly strained thereon in themanner explained.

It will be understood that my invention is to be used in connection withsuch rivetingmachines as belong to the class described in my applicationA, above referred to, of even date herewith, in which the combinedshoeholder and riveting-block are located underneath feeding mechanismwhiehfeeds the rivets to the block, and thus forces the rivet againstthe clinching'dies Z Z, held in the holders L L of the block 13, asexplained, to head or clinch the rivets, and since the shoe comes in.close proximity to the feeding mechanism when brought into position forclinching the rivet, it follows that the combined shoeholder and blockmust be so attached to the frame of the machine as to enable theoperator to swing it out from the feeding mechanism to have room toreadily apply the overshoe to the holder without interfering with thefeeding mechanism; hence, the stock A is pivoted to the frame M of themachine in the manner illustrated at F, Figs. 1 and 3.

In order to securely hold the riveting-block and shoe-holder under thefeeding mechanism, I provide the spring H, (best shown in Figs. 2 and3,) consisting of a spring-plate located underneath the frame of themachine, and having a stud, I, extending through an aperture in theframe and taking in a recess, 1, in the under side of the stock A. Whenthe stock is swung with the shoe under the feeding mechanism and thepunches, the stud I takes in the recess 1 in the stock A and securelylocks the stock in position for the heading operation, and by simplydepressing the handle or thumbpiece H of the spring the stud I isreleased from its engagement in the recess 1 and the riveting-block. maybe swung out from under the feeding mechanism and punches and theoperation repeated.

Upon the side of the stock A,at a point immediately in front thereof, Isecure a spring, S, having the end S, through which pass thesecuring-screws which fasten it to the stock A, and the head 8 isprovided with a curved extension which takes in the groove-shapedserrations of the adj usting-nut G. The object of the spring S is toform a stop to prevent the adjusting-nut C from turning during theoperation of heading the rivets.

It will be understood that the adj usti ng-nut O is loosely mounted ontop of the tubular portion A riveting-block B passingthrough the-saidnut, and that the office of the nut is solely to-adjust the block 13vertically to bring the overshoe to the proper height for receiving therivets; hence it is desirable to prevent the turning of the block or anydeviation thereof,

and this desirable result I secure by forming the grooveshapedserrations on the outer surface of the nut, as shown in Fig. 1, andproviding the spring S, interlocking therewlthby means of the curvedprojecting head s,wh1ch fits closely into the serrations and preventsthe nut from turning until suflicient pressure is applied to the nut torelease the head-extension 8 therefrom, when the. nut may be turned toregulate the height of the anv lblock at will. D

P is the plunger, operated in any suitable upward the rivetingblock B inthe heading operation; and in order to adapt the r vetingbloek to thestroke of the plunger, or, in other words, to adjust the same accuratelyfor the of the stock A, the screw G of the manner from underneath thestock to push I given length of rivet, I provide the screw B,

which takes in the threaded seat 1), Fig. 3,

which permits the adjustment of the stroke as desired.

The operation of my invention is as follows:

A rubber arctic or overshoe is applied onto the combined adjustableshoe-holder and riveting-block in the manner already explained, and thestock is swung around under the rivetfeeding mechanism and locked inposition by means of the spring H and the stud I. The rivets are feddown into the heel or sole of the arctic or like overshoes,wh'en theheadingoperation is performed by pushing up the riveting-block B, whichis accomplished by means of the plunger I, which forces up the block,and the dies Z l clinch the prongs as the rivet is forced downwardthrough the shoe, and the spiral K'retracts the riveting-block 13 backto its normal position.

, The form of the riveting-dies Z Z may be varied at will, and dieplates may be secured to the riveting-block B to accomplish the sameresult; hence I do not confine myself in any manner to the form andconstruction of such devices.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The combination of the pivoted stock A, riveting-block B, having ascrew,G, and nut C,

IIO

substantially as and for the purpose set forth.

holder D D, the plunger 1?, spiral K, and

spring H, having the stud I, taking in the re- 5. The combination of thevertically-adj ust- 20 cess I in the screw G, substantially as and forthe purpose set forth. I

3. The combination of the stock A, having the tongue a, theriveting-block B, having the screw G, provided with the vertical groovea for the tongue a of the stock, and the nut 0, all substantially as andfor the purpose set forth.

4. In a riveting-machine, the combination of a riveting-block having ascrew-threaded shank mounted in a stock, A, a nut, O, for adjusting theriveting-block, the nut being provided with vertical groove-shapedserrations c, and a spring lever or stop secured to the stock, andhavinga projection taking in the serrations in the nut to prevent itfrom turning, substantially as and for the purpose set forth.

able riveting-block having the screw-shank G, mounted in the stock A,and the plunger P, the screw-shank G being provided with a screw, 1?,against which the plunger P operates, the screw P serving to compensatefor the vertical adjustment of the riveting-block without changing thestroke of the plunger,

substantially as and for the purpose set forth.

In testimony whereof I have hereunto signed my name, in the presence oftwo attesting witnesses, at Syracuse, in the county of Onondaga, in theState of New York, this 18th day of December, 1886.

\ JACOB J. UNBEHEND.

Witnesses:

FREDERICK H. GIBBS, E. O. CANNON.

